I am helping a friend who has a cub with a few oversized implement holes, specifically one of the 2 that holds his sickle mower at the clutch housing. Because it has been enlarged to 3/4", the bolt holding the left side, even though it is tapered, does not fit down into the tapered sickle bracket well enough to keep the bolt from vibrating loose.
I thought I could simply helicoil the hole back to 5/8", but at 3/4" it is already too large for the helicoil drill (21/32"). Has anyone done this repair? Did you use threaded inserts? If so, do you have a part number? Or is there a better way to fix this?
When I was at his place, I noticed the left final has the same oversized implement bolts, so I'm not sure how securely those are holding the mower/drawbar either. I would like to fix it right...or at least more securely! Thanks.
Thread repair
Moderator: Team Cub
Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
-
- 10+ Years
- Posts: 5124
- Joined: Tue Apr 27, 2010 11:34 am
- Zip Code: 27517
- Tractors Owned: '51 Cub
'55 Cub with Woods 59 mower
'55 Cub "Bertha" with Woods 42 mower
'55 Cub "Ben" with Woods 42 mower
'56 Cub "Boris" with Mott Flail mower - Circle of Safety: Y
- Location: NC, Chapel Hill
-
- 501 Club
- Posts: 4625
- Joined: Wed Nov 22, 2017 6:24 am
- Zip Code: 00000
- Tractors Owned: .
1970 International 140 (Norman)
1972 International 140 (Keeferdoodle)
1949 John Deere A
1993 Ford 4630 W/Loader
1965 John Deere 110
1961 Cub Cadet Original
Sold Cubs..
1947 Cub #1447 (Arnold)
1949 Cub (Walt)
1950 Cub (piece of junk)
1952 Cub
1975 IH Cub
1974 IH Lo-Boy - Circle of Safety: Y
- Location: N.C.
Re: Thread repair
They make an oversized thread insert, it's called thick wall. Here's a link to Mcmaster Carr that has all the dimensions.
https://www.mcmaster.com/90245a038
https://www.mcmaster.com/90245a038
Every home is a school, what are you teaching?


-
- Team Cub
- Posts: 10360
- Joined: Tue May 25, 2004 8:02 pm
- Zip Code: 80501
- Tractors Owned: Cubs, MH Pony, Shaw, Allis G, 1934 Silver King, JD LA and LI, Gibson D, David Bradley Tri-Trac
- Circle of Safety: Y
- Location: CO, Longmont
Re: Thread repair
E-Z lok is another brand. They take a standard drill bit and tap, not STI's like a helicoil.
"We don't need to think more,
we need to think differently."
-Albert Einstein
we need to think differently."
-Albert Einstein
-
- 10+ Years
- Posts: 5124
- Joined: Tue Apr 27, 2010 11:34 am
- Zip Code: 27517
- Tractors Owned: '51 Cub
'55 Cub with Woods 59 mower
'55 Cub "Bertha" with Woods 42 mower
'55 Cub "Ben" with Woods 42 mower
'56 Cub "Boris" with Mott Flail mower - Circle of Safety: Y
- Location: NC, Chapel Hill
Re: Thread repair
I was looking at EZLOK, and if I was reading the table correctly, in order to insert one for a 5/8" fitting, the hole needs to be 1". Can you guys confirm that? And next, can you take a look at the clutch housing where the bolt holes are for the sickle bracket, and tell me if you think there is enough room for a 1" hole? 1" puts the hole pretty close to the edge of the boss (if that's what the flat area is called
)

-
- 5+ Years
- Posts: 137
- Joined: Wed Nov 04, 2015 5:43 pm
- Zip Code: 27041
- Tractors Owned: ---------
1948 Farmall Cub #56596
1950 Farmall Cub #101608
1950 Farmall Cub #106823
1955 Farmall Cub #188789 - Location: NC, Pilot Mountain
Re: Thread repair
Dale,
Here is picture of EZ-LOK inserts, drill bit and tap I used to repair finals on a couple of my cubs. The tap drill bit is 49/64 and the tap is 7/8-9. I repaired the implement holes while finals were on tractor. I was well pleased with results.
I can mail you the drill bit and taps if you like, would just need your address.
Gary

Here is picture of EZ-LOK inserts, drill bit and tap I used to repair finals on a couple of my cubs. The tap drill bit is 49/64 and the tap is 7/8-9. I repaired the implement holes while finals were on tractor. I was well pleased with results.
I can mail you the drill bit and taps if you like, would just need your address.
Gary

-
- 10+ Years
- Posts: 5124
- Joined: Tue Apr 27, 2010 11:34 am
- Zip Code: 27517
- Tractors Owned: '51 Cub
'55 Cub with Woods 59 mower
'55 Cub "Bertha" with Woods 42 mower
'55 Cub "Ben" with Woods 42 mower
'56 Cub "Boris" with Mott Flail mower - Circle of Safety: Y
- Location: NC, Chapel Hill
Re: Thread repair
If my math is correct, the current bolt is a 3/4", which is 48/64", which means there's JUST enough metal for your 49/64" drill. That would be fantastic! I will get the info from the inserts so I can replace what I use. Thank you! 
Sending PM!

Sending PM!
-
- Team Cub
- Posts: 10360
- Joined: Tue May 25, 2004 8:02 pm
- Zip Code: 80501
- Tractors Owned: Cubs, MH Pony, Shaw, Allis G, 1934 Silver King, JD LA and LI, Gibson D, David Bradley Tri-Trac
- Circle of Safety: Y
- Location: CO, Longmont
Re: Thread repair
Dale, for future reference, I think they come in thin, standard, and thick walls so you can match it to the hole size you're correcting.
"We don't need to think more,
we need to think differently."
-Albert Einstein
we need to think differently."
-Albert Einstein
-
- 10+ Years
- Posts: 70
- Joined: Sun Feb 02, 2003 9:12 pm
- Zip Code: 37036
- Circle of Safety: Y
- Location: Charlotte tn(35 miles west of music city)
Re: Thread repair
this might make folks cringe but I have one cub that the holes on both sides are wallowed out. I have 3/4 all thread rod thru the bell housing with nuts and lock washers on both sides
-
- Team Cub
- Posts: 15418
- Joined: Sun Feb 02, 2003 2:59 pm
- Zip Code: 55319
- Circle of Safety: Y
- Location: MN
Re: Thread repair
tenn terry t wrote:this might make folks cringe but I have one cub that the holes on both sides are wallowed out. I have 3/4 all thread rod thru the bell housing with nuts and lock washers on both sides
That will never stay tight, particularly for the mower. The threads of the all thread will wear through the casting even faster than most other things that could be in that place.
-
- 10+ Years
- Posts: 4931
- Joined: Mon Jan 26, 2004 10:53 am
- Zip Code: 28521
- Tractors Owned: 1949 Cub "The Paperweight"
Cub powered IH 52R combine
Grandfather's 1948 Super A
White demo Super A-"Ol Whitey"
1950 Super A "Old Ugly"
1954 Super A-1
856
Buncha other junk - Circle of Safety: Y
- Location: NC, Jacksonville area
Re: Thread repair
I had a similar problem on my tractor. For of the implement holes on the torque tube had stripped, someone had tried to drill/rethread and they stripped again. Holes were right at 1" in diameter. I was able to get Shane to drill and make thread inserts for it. It was a mess but he made it look like nothing had ever happened!
Al
Al
White Demo Super A Restoration Updates
Let us pray for farmers and all who prepare the soil for planting, that the seeds they sow may lead to a bountiful harvest.
"It ain't a !@*% A. It's a SUPER A!"
Let us pray for farmers and all who prepare the soil for planting, that the seeds they sow may lead to a bountiful harvest.
"It ain't a !@*% A. It's a SUPER A!"
-
- 10+ Years
- Posts: 70
- Joined: Sun Feb 02, 2003 9:12 pm
- Zip Code: 37036
- Circle of Safety: Y
- Location: Charlotte tn(35 miles west of music city)
Re: Thread repair
yea well its only been on there for the five or so years that ive had it so I guess time will tellJim Becker wrote:tenn terry t wrote:this might make folks cringe but I have one cub that the holes on both sides are wallowed out. I have 3/4 all thread rod thru the bell housing with nuts and lock washers on both sides
That will never stay tight, particularly for the mower. The threads of the all thread will wear through the casting even faster than most other things that could be in that place.
-
- Cub Star!
- Posts: 228
- Joined: Thu May 24, 2018 9:57 pm
- Zip Code: 22958
- Tractors Owned: 5 Cubs
1952 100
1960 460 Utility - Location: Central Va.
Re: Thread repair
tenn terry t wrote:this might make folks cringe but I have one cub that the holes on both sides are wallowed out. I have 3/4 all thread rod thru the bell housing with nuts and lock washers on both sides
I think Jim Becker has a point. Think about the load with a snow plow or the vibration with a sickle bar mower. Maybe you don't have these implements but it limits what you are able to do with your cub. Just a thought. Walter
Walter
-
- Similar Topics
- Replies
- Views
- Last post
-
- 6
- 415
-
by Matt Kirsch
Tue Jun 05, 2018 5:15 pm
-
-
Coolent drain thread repair in lower tank / steering gear housing Attachment(s)
by Genseal » Wed Apr 29, 2020 10:55 am » in Farmall Cub - 10
- 280
-
by Donegal Cub
Thu Apr 30, 2020 4:19 am
-
-
- 2
- 474
-
by birddog
Mon Feb 26, 2018 6:24 pm
-
- 6
- 631
-
by Dale Finch
Mon Jan 13, 2020 12:30 pm
-
- 5
- 263
-
by tst
Sat Oct 24, 2020 6:19 pm
Who is online
Users browsing this forum: ericofmaine, Greenthumbfarms and 6 guests